Two identical point charges are apart and move side by side with identical speeds of…

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

Two identical +2.0 μC+2.0\,\mu\text{C} point charges are 0.010 m0.010\,\text{m} apart and move side by side with identical speeds of 3.0×106 m/s3.0\times10^{6}\,\text{m/s} in the same direction. At that instant, what is the approximate ratio of the magnitude of the magnetic force to the magnitude of the electric force that either charge exerts on the other, FB/FEF_{B}/F_{E}? (a) 1×10−21\times10^{-2} (b) 1×10−81\times10^{-8} (c) 1×10−41\times10^{-4} (d) 1×10−31\times10^{-3}

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